// 本机ip地址为：http://192.168.12.56:9999/

const http = require('http')

const server = http.createServer((require, response) => {
    response.writeHead(200, {'Content-Type': 'text/html; charset=utf-8'})
    
    response.end('这是一个后台返回的网页')
})

server.listen(9999, () => {
    console.log('程序在9999端口运行')
})